# US 12,015,137 B2 · Battery and method for thermal regulation of a battery onboard an electric vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,015,137 B2 - Document ID: US12015137B2 - Status: Granted - Kind: B2 - Application number: 17/439,614 - Filed: 2020-02-18 - Published: 2022-05-19 - Granted: 2024-06-18 - Earliest claimed: 2019-03-15 - Assignees: Forsee Power - Applicants: Forsee Power - Inventors: Benoît Peron - Web page: https://patentgrep.com/patent/US12015137B2 ## CPC - H01M 10/6572: Peltier elements or thermoelectric devices - H01M 10/613: Cooling or keeping cold - H01M 10/615: Heating or keeping warm - H01M 10/625: Vehicles - H01M 10/63: Control systems (charging or discharging in response to temperature H01M10/44 {, H01M10/443}; measurement of temperature H01M10/48 {, H01M10/486}) - H01M 10/635: based on ambient temperature - H01M 10/6554: Rods or plates - H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence) - H01M 10/482: {for several batteries or cells simultaneously or sequentially} - H01M 10/486: {for measuring temperature} - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract Disclosed is a battery configured to electrically power at least one actuator or to receive electrical energy from at least one onboard actuator onboard an electrically autonomous vehicle, the battery including at least one battery element, the at least one battery element, being configured to store or restore electrical energy, the battery also comprising a thermoelectric device that is electrically connected to the at least one battery element, the thermoelectric device including: —a first heat-conducting portion placed in contact with the at least one battery element, —at least one thermoelectric cell, placed in contact with the heat-conducting portion, the at least one thermoelectric cell, being configured to produce a first positive or negative thermal power as a function of a first electrical current passing through the at least one thermoelectric cell, the first electrical current being provided by the at least one battery element—a second heat-conducting portion placed in contact with the at least one thermoelectric cell and configured to dissipate a second thermal power generated by the at least one battery element, —at least one first sensor configured to measure a temperature of the at least one battery element, —a regulation module, the at least one first sensor being coupled to the regulation module, the regulation module being configured to control the first electrical current as a function of the target temperature of the at least one battery element such that a variation between the temperature measured by the at least one first sensor and the target temperature remains below a predetermined threshold. ## Claims ### Claim 1 A battery configured to electrically power at least one actuator or to receive electrical energy from at least one actuator onboard an electrically standalone vehicle, the battery comprising at least one battery element the at least one battery element being configured to store or render an electrical energy, the battery also comprising a thermoelectric device electrically connected to the at least one battery element, the thermoelectric device comprising: a first heat-conductive portion placed in contact with the at least one battery element, at least one thermoelectric cell, placed in contact with the first heat-conductive portion, the at least one thermoelectric cell being configured to produce a first thermal power, positive or negative according to a first electric intensity flowing through the at least one thermoelectric cell, the first electric intensity being supplied by the at least one battery element, a second heat-conductive portion placed in contact with the at least one thermoelectric cell and configured to dissipate a second thermal power generated by the at least one battery element, at least one first sensor configured to measure a temperature of the at least one battery element, a regulation module, the at least one first sensor being coupled to the regulation module, the regulation module being configured to monitor the first electric intensity according to a target temperature of the at least one battery element, so that a deviation between the temperature measured by the at least one first sensor and the target temperature remains below a predetermined threshold, wherein the thermoelectric device further comprises: a second sensor configured to measure an ambient temperature outside the at least one battery element, at least one third sensor configured to measure a second electric intensity flowing through the at least one battery element, wherein the second sensor and the at least one third sensor are coupled to the regulation module, the regulation module being configured to determine the first electric intensity according to the target temperature, the ambient temperature measured by the second sensor, and the second intensity measured by the at least one third sensor, based on a thermoelectric model of the battery, the thermoelectric model of the battery comprising a model of the at least one battery element, and the regulation module being configured to implement a temperature regulation method based on an adjustment of minimum and maximum temperature limits of a setpoint temperature of the battery according to the relative humidity ratio of air with respect to the ambient temperature. ### Claim 2 (depends on 1) The battery according to claim 1, wherein the regulation module is configured to: estimate an estimated temperature of the at least one battery element from the thermoelectric model of the battery, compute a deviation between the estimated temperature and a measured temperature on the at least one battery element, if the deviation is greater than a determined threshold, update the thermoelectric model of the battery by estimating a value of at least one parameter of the thermoelectric model of the battery according to the temperature measured by the at least one first sensor. ### Claim 3 (depends on 1) The battery according to claim 1, wherein the electrically standalone vehicle is a collective transport vehicle. ### Claim 4 (depends on 1) A battery assembly comprising a first battery according to claim 1 and a second battery according to claim 1, the second heat-conductive portion of the first battery being in contact with the at least one thermoelectric cell of the second battery and being configured to absorb and evacuate heat produced by the at least one battery element of the second battery, so that the first battery and the second battery have the second heat-conductive portion in common. ### Claim 5 A method for thermal regulation of a battery configured to electrically power at least one actuator or to receive electrical energy from at least one actuator onboard an electrically standalone vehicle, the battery comprising: at least one battery element, the at least one battery element being configured to store or render an electrical energy, a thermoelectric device electrically connected to the at least one battery element, the thermoelectric device comprising: a first heat-conductive portion placed in contact with the at least one battery element, at least one thermoelectric cell, placed in contact with the first heat-conductive portion, the at least one thermoelectric cell being configured to produce a first thermal power, positive or negative according to a first electric intensity flowing through the at least one thermoelectric cell, the first electric intensity being supplied by the at least one battery element, a second heat-conductive portion placed in contact with the at least one thermoelectric cell and configured to dissipate a second thermal power generated by the at least one battery element, at least one first sensor configured to measure a temperature of the at least one battery element, a second sensor configured to measure an ambient temperature outside the at least one battery element, at least one third sensor configured to measure a second electric intensity flowing through the at least one battery element, and wherein the second sensor and the at least one third sensor are coupled to the regulation module, a regulation module, the at least one first sensor, the second sensor, and the at least one third sensor being coupled to the regulation module, the regulation module being configured to monitor the first electric intensity according to a target temperature of the at least one battery element, the regulation module being configured to implement a temperature regulation method based on an adjustment of minimum and maximum temperature limits of a setpoint temperature of the battery according to the relative humidity ratio of air with respect to the ambient temperature, the method comprising the following steps implemented by the regulation module: controlling a measurement of an ambient temperature; determining the first electric intensity according to the target temperature, and the ambient temperature, so that a deviation between the temperature measured by the at least one first sensor and the target temperature remains below a predetermined threshold, and controlling a measurement of the second electrical intensity, wherein at the step of determining the first electric intensity, the first electric intensity depends on the target temperature, the ambient temperature and the second electrical intensity, based on a thermoelectric model of the battery, the thermoelectric model of the battery comprising a model of the at least one battery element. ### Claim 6 (depends on 5) The method according to claim 5, further comprising the following steps: control a measurement of a temperature of the at least one battery element, estimate an estimated temperature of the at least one battery element from the thermoelectric model of the battery compute a deviation between the estimated temperature and a measured temperature of the at least one battery element, if the deviation is greater than a determined threshold, update the thermoelectric model of the battery by estimating a value of at least one parameter of the thermoelectric model of the battery according to the measured temperature. ### Claim 7 (depends on 1) The battery according to claim 1, wherein the electrically standalone vehicle is a collective transport vehicle. ### Claim 8 (depends on 7) The battery according to claim 7, wherein the collective transport vehicle is a rail vehicle. ### Claim 9 (depends on 2) The battery according to claim 2, wherein the electrically standalone vehicle is a collective transport vehicle. ### Claim 10 (depends on 9) The battery according to claim 9, wherein the collective transport vehicle is a rail vehicle. ### Claim 11 (depends on 3) The battery according to claim 3, wherein the collective transport vehicle is a rail vehicle.